Direct fuel injection/spark ignition engine control device

Details Direct fuel injection/spark ignition engine control device Direct fuel injection/spark ignition engine control device

2006-05-30

2006-05-30

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

C123S295000, C060S285000

Reexamination Certificate

active

07051701

ABSTRACT:
A control apparatus is configured to enhance turbulence in the cylinder produced by the fuel spray, and to improve combustion stability (promote flame propagation) in an ATDC designed to reduce HC and/or achieve early activation of the catalyst. Ignition timing is set to compression top dead center (TDC) or later when needed such as when the catalyst requires warming. In one fuel injection timing, the fuel is injected in two fuel injections with a first fuel injection occurring during the compression stroke, and the second fuel injection being carried out at 45° BTDC or later.

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